Patents
Literature

63results about How to "Reduce equipment investment" patented technology

Hot-air drying machine capable of utilizing waste heat and achieving penetrating countercurrent fluidization

The invention discloses a hot-air drying machine capable of utilizing waste heat and achieving penetrating countercurrent fluidization. The upper portion of a drying tower is connected with an induced draft fan, and the induced draft fan is connected with a cyclone dust removing waste heat efficient recoverer formed by a tube-type heat exchanger and a cyclone dust collector in an overlapped manner in the tangent direction and then is emptied; the air inlet end of the shell side of the tube-type heat exchanger is communicated with the atmosphere, and the air outlet end of the shell side of the tube-type heat exchanger is connected with the lower portion of the drying tower through an air blower and a steam finned heater; and an impeller of the induced draft fan is of a structure that blades are in a hollow and wedged shape, and the contour line of the appearance of the induced draft fan is an involute. According to the hot-air drying machine capable of utilizing the waste heat and achieving the penetrating countercurrent fluidization, creative integration is conducted on waste heat utilization and dust removal, the cyclone dust removing waste heat efficient recoverer is designed out, the equipment input is reduced, and the work efficiency is improved; and due to the fact that sieve mesh cone covers, sieve mesh cone discs, discharging tubes, a stretching vibration transmission shaft and conical plugs are arranged, penetrating, countercurrent, boiling and fluidization drying of materials are exquisitely and perfectly achieved, more energy is saved, the drying quality is higher, the power consumption of the induced draft fan is lower, and the application prospect is wider.
Owner:常州新舜干燥工程有限公司

Method and apparatus for single-stage mixing cryogen refrigerating cycle liquefied natural gas

InactiveCN101413749AReduce equipment investmentSimplify cycle flow and operational control
The invention discloses a method for liquefying natural gas by the refrigeration cycle of a single stage mixed refrigerant, which comprises the following steps: raw natural gas passes through a heat exchanger in an ice chest to exchange heat with the mixed refrigerant, and is cooled and liquefied; wherein, in sequence, the mixed refrigerant is first pressurized by a compressor, cooled by a cooler, directly enters the heat exchanger to be precooled without gas-liquid separation, goes out of the heat exchanger for depressurization and temperature reduction and then returns to the heat exchanger to exchange the heat of the natural gas and liquefy the natural gas, as well as is vaporized to gaseous mixed refrigerant and returns to the compressor for the next cycle; by reducing the outlet pressure of the compressor, or boosting the position of the outlet cooler of the compressor or using a way that the mixed refrigerant goes in and out of the ice chest both from the lower part, the method solves the problem of two phase flow of gas and liquid; can reduce the investment of the equipment such as a gas-liquid separator, a pump and the like, simplify the cycle process and operation control and reduce the manufacture cost as well. The invention also discloses a device applied to the method.
Owner:CHENGDU SEPMEM SCI & TECH

Method for separating mixed water-soluble and liposoluble components by virtue of subcritical liquid-liquid extraction technology

The invention discloses a method for separating a water-soluble component from a liposoluble component by virtue of a subcritical liquid-liquid extraction technology, which belongs to the field of biological extraction. The novel extraction and separation technology comprises the following steps: putting a pretreated mixed material into an extraction pot; in the airtight, anaerobic and low-pressure extraction pot, according to the similarity-intermiscibility principle of organic matters, transferring the liposoluble component from a liquid material into an extraction solvent through a molecular diffusion process in the soaking of the liquid material and the extraction solvent, thereby separating the liposoluble component from the water-soluble component; performing standing for layering, thereby completely separating the water-soluble component in the liquid material from the liposoluble component; and finally removing solvents from the two components through pressure reducing evaporation, thereby respectively obtaining the water-soluble component and the liposoluble component. The method is simple in technology, low in equipment investment, suitable to large-scale production, low in extraction temperature, high in product separation degree and free of solvent residues; since the solvents are recyclable, no pollution is caused; the method has a broad application prospect.
Owner:河南亚临界生物技术有限公司 +1

Method for preparing polyperfluorinated ethylene propylene from perfluorodiacyl peroxide initiator

InactiveCN102675519AGood weather resistance and stabilityReduce equipment investment
The invention provides a method for preparing polyperfluorinated ethylene propylene from a perfluorodiacyl peroxide initiator, belonging to the technical field of fluorine chemical industry. The method is characterized by comprising the following steps: displacing with nitrogen gas to vacuumize a reaction kettle; adding de-ionized water, then introducing excessive perfluorinated propylene monomers, and raising the temperature to 0-60 DEG C; then directly adding a perfluorodiacyl peroxide initiator, and introducing tetrafluoroethylene monomers; after the inside of the kettle reaches 0.5-1.5 MPa, stirring, and continuously introducing tetrafluoroethylene monomers into the reaction kettle; after the reaction pressure is maintained for 2-8 hours, discharging to obtain a polyperfluorinated ethylene propylene copolymer; and finally heating in a constant-temperature cabinet to remove the residual perfluorodiacyl peroxide. The terminal group of the prepared polyperfluorinated ethylene propylene is stable perfluorodiacyl, thereby having no need for the processing stage of end group stabilization later, simplifying the process flow, reducing the equipment investment, lowering the production cost and improving the production efficiency. Besides, the whole polymerization system is a solvent-free system, thereby having no problems of solvent recovery, pollution of solvent to the environment and the like.
Owner:江苏梅兰化工有限公司

Hoisting vehicle and method for replacing of long and heavy parts of high-speed railway turnout

ActiveCN107476146AReduce field work timeReduce equipment investment
The invention discloses a hoisting vehicle and method for replacing of long and heavy parts of a high-speed railway turnout. The hoisting vehicle comprises a rail vehicle body, a fixed portal frame flat vehicle body and a moveable portal frame flat vehicle body which are connected end to end through hooks. The method for replacing of the long and heavy parts of the high-speed railway turnout comprises the following steps that 1, the new long and heavy parts of the high-speed railway turnout are hoisted and fixed; 2, the fixed portal frame flat vehicle body and the moveable portal frame flat vehicle body are unfolded and fixed; 3, the used long and heavy parts of the high-speed railway turnout are hoisted and fixed; 4, the new long and heavy parts of the high-speed railway turnout replace the used long and heavy parts of the high-speed railway turnout; and 5, the fixed portal frame flat vehicle body and the moveable portal frame flat vehicle body are folded. The hoisting vehicle and method have the advantages that according to the mechanical device designed special for the long and heavy parts of the high-speed railway turnout, the current defect of secondary hoisting of the new and used long and heavy parts of the high-speed railway turnout is overcome, and thus the site operation time is saved greatly. In the safety aspect, the operation range of the equipment is below that of a lifting beam, so that the hidden danger that the equipment collides a contact net is avoided. In the aspect of comparing the equipment cost, the equipment investment of the newly-proposed method is quite low, and thus popularization is easy.
Owner:蔡钟博

Water emulsification process of alkyd resin coating

ActiveCN102888178ALow VOCReduce equipment investment
The invention discloses a water emulsification process of an alkyd resin coating. The coating is generated by proportionally mixing and stirring four or more substances in alkyd resins (high viscosity), an emulsifying agent, distilled water, sulfates, 200# solvent oil, n-butanol and isobutanol according to the following steps: throwing the distilled water and the sulfates into a head tank with stirring according to the proportion and stirring and dissolving the substances for later use; throwing the alkyd resins and the emulsifying agent into an emulsifying kettle, dropwise adding water solution from the head tank when the stirring linear speed is more than 6m/s and controlling the dropwise adding time between 30 minutes and 90 minutes; and stirring and emulsifying the substances for 40-80 minutes at high speed after dropwise adding and using the solvent oil and/or an alcohol solvent to adjust the viscosity. The process has the following characteristics that the water emulsion replaces part of organic solvents and has stable properties, thus reducing the VOC (volatile organic compounds) of the alkyd resin coating, without affecting the properties of the coating; the VOC can be reduced by 10-30% at most and the product reaches the national standard; and the needed equipment investment is low and the water-in-oil alkyd resin emulsion has good stability.
Owner:CHONGQING SANXIA PAINTS CO LTD

Stone-plastic composite board extrusion molding process

The invention discloses a stone-plastic composite board extrusion molding process which comprises: mixing 60% to 70% of modified waste mineral powder, 20% to 25% of PVC (polyvinyl chloride) resin powder, 0 to 1% of stearic acid, 1% to 2% of paraffin, 3% to 6% of PVC calcium-zinc composite stabilizer, 1% to 3% of acrylic resin and 1% to 3% of chlorinated polyethylene, and preparing to obtain a PVCcompound material through a PVC compound material applicable to extrusion molding; adding the PVC compound material into a double-screw extruder by a quantitative feeding system, adopting four-stage temperature control, and extruding at a high temperature; enabling die head position static mixers to adopt four-stage temperature control, carrying out vacuum sizing by 2 to 4 serial die heads on a vacuum sizing table, and then carrying out processes of water cooling, air drying, crawling traction, cutting and the like to form a stone-plastic composite board. The stone-plastic composite board extrusion molding process disclosed by the invention is low in equipment investment, low in energy consumption and low in pollution, has the advantages of PVC plasticizing uniformity, difficulty in decomposition, high production efficiency, low defective rate, long screw service life and the like, and provides a matured and reliable extrusion molding process for the stone-plastic composite board.
Owner:SHAANXI SCI TECH UNIV +1

Sewage treatment device

The invention discloses a sewage treatment device. The sewage treatment device sequentially comprises a filtering box, a stirring box and a treatment box from left to right, wherein the filtering box,the stirring box and the treatment box are connected in a penetrating way; a water intake pipe is arranged at the bottom part of one side of the stirring box; a water drain pipe is arranged at the top part of one side of the treatment box; the top part of one side of the filtering box is communicated with the bottom part of one side of the stirring box through a pipeline I; the top part of one side of the stirring box is communicated with the bottom part of one side of the treatment box through a pipeline II; a plurality of stages of filtering nets are arranged in the filtering box and between the water intake pipe and the pipeline I; a stirrer is arranged in the stirring box; an activated carbon adsorption plate is arranged at the inside wall of the stirring box; a biological filler is arranged in the treatment box; slag discharge doors are respectively arranged at the bottom parts of the filtering box, the stirring box and the treatment box. The sewage treatment device can solve theproblems of the sewage treatment system that the structure is complicated, the equipment investment is high, the treatment effect is poor, the treatment efficiency is low, and the blockage is easy due to impurities in the sewage.
Owner:华蓥市职业教育培训中心

High-efficiency bridge equipment

The invention discloses high-efficiency bridge equipment which comprises a base frame and rope winding components uniformly distributed on the end surface at the top of the base frame; vertical arms are fixedly mounted at the bottom of the base frame; an universal wheel is mounted at the bottom of each of the vertical arms in a rolling manner; a driving cavity stretching towards the front side is arranged in the base frame at the position below each of the rope winding components; a first hollow cavity stretching in the left-right direction is formed in the rear side of each of the driving cavities in a communicating manner; a second hollow cavity is formed in the base frame at the position on the front side of each of the first hollow cavities; a partition plate is arranged between each of the first hollow cavities and the corresponding second hollow cavity; a guide and transfer groove is formed in the inner top of the front side of each of the first hollow cavities; and a first sliding frame extending downwards is arranged in each of the guide and transfer grooves. The high-efficiency bridge equipment has the benefits as follows: the structure is simple, the installation of a plurality of rope drums can be realized, each of the rope drums does not need to be replaced with a new one after the completion of rope winding, both time and labor are saved, and the efficiency is improved; besides, a driving device does not need to be additionally arranged, so that the manufacturing cost is reduced, and the enterprise procurement cost is further reduced.
Owner:俞岳田

Capacitive voltage division electronic voltage transformer with double capacitive rings

InactiveCN103093950AReduce equipment investmentReduce equipment operating costs
The invention relates to a single-phase capacitive voltage division electronic voltage transformer which comprises a shell, a base, a support, intermediate electrodes, an insulating support, a high-voltage electrode, a junction box, a disc insulator, an explosion-proof device, an upper shielding ring, a lower shielding ring and a grounding electrode. The shell is fixedly arranged on the base, the insulating support is fixedly arranged on the base, the grounding electrode is fixedly arranged on the insulating support, the disc insulator is fixedly arranged on the shell, the high-voltage electrode is connected with the disc insulator and is arranged in inner cavities of the intermediate electrodes, and the intermediate electrodes, the upper shielding ring and the lower shielding ring are respectively fixedly arranged on the grounding electrode. The single-phase capacitive voltage division electronic voltage transformer has the advantages that as the intermediate electrodes, the upper shielding ring, the lower shielding ring and the shell are made of aluminum alloy materials with low expansion coefficients, fluctuation of detected data due to expansion of the materials is reduced; and the high-voltage electrode is of an arc-shaped cylindrical structure, ports of the intermediate electrodes and ports of the upper and lower shielding rings are in arc-shaped transition, and accordingly point discharge is reduced.
Owner:JIANGSU SIYUAN HERTZ TRANSFORMER

Method of synthesizing sec-butyl acetate and apparatus therefor

The invention discloses a method of synthesizing sec-butyl acetate, which includes the steps of: a) a multi-section reaction step, in which a reaction is carried out completely to an inputted mixture containing acetic acid and C4 fractions in a multi-section adiabatic fixed bed reactor under the effect of a catalyst, and a reaction product is outputted; b) a temperature and pressure control step, in which the reaction product is fed into a temperature and pressure control apparatus to control the vaporization fraction of the reaction product through pressure and further control temperature increase of the reaction, when the reaction product reaches a preset temperature in the temperature and pressure control apparatus, a vaporization reaction is carried out and reaction heat is absorbed, wherein the reaction product is separated to form a vapor product and a liquid product, and the gas pressure is regulated according to the preset pressure value by means of the temperature and pressure control apparatus to discharge the vapor product while the liquid product is fed into the next section of the multi-section adiabatic fixed bed reactor and is continuously reacted with the C4 fraction completely; and c) a fraction separation step, in which the vapor product and the liquid product are received by a fraction separation column to separate the fractions, thereby synthesizing the sec-butyl acetate. The invention also discloses an apparatus of synthesizing the sec-butyl acetate.
Owner:PETROCHINA CO LTD

Method for quickly suppressing activity of acidic trehalose lytic enzyme in beer yeast cell

The invention discloses a method for quickly suppressing activity of an acidic trehalose lytic enzyme in a beer yeast cell, belonging to the technical fields of fine and further processing of agricultural and sideline products and comprehensive utilization of byproducts of the agricultural and sideline products, particularly relating to a method for suppressing the activity of the acidic trehalose lytic enzyme in the beer yeast cell by using a high-voltage pulsed electric field technology. In the method, a high-voltage pulsed electric field device is used, electrodes with both proper length and diameter are selected and used; electric field strength and frequency in the high-voltage pulsed electric field device are controlled to be within proper ranges; and beer yeast cell suspension with proper concentration and proper pH value is pumped to the electrodes of the high-voltage pulsed electric field device at a certain constant flow speed for stream processing and then is collected in a finished product tank. The technical preparation method comprises the following steps of: preparing the beer yeast cell suspension; regulating acidity of the suspension; adjusting and controlling parameters of the high-voltage pulsed electric field; and adjusting and controlling constant flow pumping speed of the suspension. The method has the advantages that: the suppression ratio of the activity of the acidic trehalose lytic enzyme in the beer yeast cell reaches over 95 percent within 60 microseconds; a technical support is provided for production technology research of quick trehalose extraction; and a certain foundation can be laid for comprehensive development for changing waste beer yeast mud into things of value.
Owner:JILIN UNIV

Dual-purpose boiling furnace system for drying water clarifying agent

The invention relates to a dual-purpose boiling furnace system for drying a water clarifying agent. The dual-purpose boiling furnace system is provided with a boiling furnace, a fuel feeding opening, an air inlet and a smoke outlet are formed in the boiling furnace, and the smoke outlet is provided with an a-channel smoke treatment system and a b-channel smoke treatment system; the a-channel smoke treatment system is sequentially connected with a dirt catcher and an induced draft fan a in series through a settling chamber by means of pipes and then connected to a spraying drying tower a; the b-channel smoke treatment system is sequentially connected with a bag collector and an induced draft fan b in series through an air heat exchanger by means of pipes and then connected to a chimney; a bypass pipe is arranged on the pipe between the induced draft fan b and the chimney, a backflow draught fan is arranged on the bypass pipe, and the tail end of the bypass pipe is connected with the spraying drying tower a of the a-channel smoke treatment system; and an inlet of a heat exchange pipe in the air heat exchanger is sequentially connected with an air filter and an air blower in series, and an outlet of the heat exchange pipe is connected with a spraying drying tower b. The dual-purpose boiling furnace system is simple in structure, the boiling furnace is provided with two smoke channels, the flow is adjusted through a flue shutter, heating can be carried out simultaneously, and heating through one channel can also be carried out; and the boiling furnace has two purposes, the investment is saved, and the smoke using rate is improved.
Owner:HUANGSHI TIANDA THERMAL ENERGY EQUIP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products